The control of injection speed and pressure of construction machinery forging die is an important parameter to control the injection action of die in forging process. Accurate control of the injection speed and pressure can ensure that the shape, size and quality of the forging meet the requirements.
- Mold injection speed control:
The die injection speed refers to the speed at which the die fills the metal material towards the forging during the forging process. The main purpose of controlling the injection speed of the die is to avoid the problems of splashing, porosity and defects of the metal liquid, and to ensure the uniform filling of the forging. The specific injection speed setting should be determined according to the shape, size and characteristics of the forging material, in general, the injection speed should be gradually increased, so as to avoid the metal liquid in the filling process to produce a non-ideal flow state. - Mold injection pressure control:
The injection pressure of the mold refers to the pressure exerted by the mold on the metal liquid, which is compacted and filled during the injection process. The control of injection pressure affects the density, internal defects and dimensional accuracy of forgings. Low injection pressure may lead to porosity and defects inside the forging, while too high injection pressure is easy to cause mold wear and forging deformation. Therefore, according to the requirements of the forging and the characteristics of the metal liquid to choose the appropriate injection pressure, and ensure that the entire injection process to maintain a stable injection pressure.
In order to accurately control the mold injection speed and pressure, advanced numerical control system and hydraulic control system are generally used. These systems can detect the size and dynamic parameters of the forging in real time, and control the injection speed and pressure of the die by feedback, so as to achieve the purpose of precise control.
It should be noted that the specific control method and parameter setting of the mold injection speed and pressure should be determined according to the specific construction machinery forging and forging process, and it is best to optimize and adjust in the actual production operation to obtain the best forming effect.
